Method and apparatus for intra aortic substance delivery to a branch vessel
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0 Petitions
Accused Products
Abstract
A renal flow system injects a volume of fluid agent into a location within an abdominal aorta in a manner that flows bilaterally into each of two renal arteries via their respectively spaced ostia along the abdominal aorta wall. A local injection assembly (100) includes two injection members (104, 106), each having an injection port (112) that couples to a source of fluid agent externally of the patient. The injection ports may be positioned within an outer region of blood flow along the abdominal aorta wall perfusing the two renal arteries.
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Citations
63 Claims
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1-43. -43. (canceled)
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44. A catheter for locally delivering fluid agent to the renal arteries of a patient and accommodating a medical intervention device comprising:
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a catheter having a proximal end location, a mid distal location, a distal end location, a central lumen that accommodates the medical interventional device, and at least one outer lumen;
a local injection assembly having a tube, wherein the tube is inserted into the outer lumen, the tube having a proximal end location, a distal end location, and a first injection port positioned on the tube between the distal end location of the tube and the mid distal location of the catheter, wherein the distal end location of the tube is coupled to the distal end location of the catheter, and the tube is adjustable between a first position and a second position;
wherein in the first position, the tube is configured to be delivered to a location within an abdominal aorta associated with a blood stream flowing into a plurality of renal artery ostia; and
wherein in the second position, the tube is configured to be anchored at the location and the injection port is positioned to deliver fluid agent from a fluid agent source into the blood stream. - View Dependent Claims (45, 46, 47, 48, 49, 50, 51, 52, 53)
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54. A method for treating a renal system in a patient from a location within the abdominal aorta associated with abdominal aortic blood flow into first and second renal arteries via their respective first and second renal ostia, respectively, at unique respective locations along the abdominal aorta wall, and performing medical intervention, comprising:
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positioning a local injection assembly with a central lumen at the location with first and second injection ports at first and second unique respective positions at the location;
fluidly coupling the local injection assembly at the location to a source of fluid agent externally of the patient;
simultaneously injecting a volume of fluid agent from the source through the first and second injection ports at the first and second positions and principally into the first and second renal arteries, respectively, and advancing a medical intervention device through the central lumen. - View Dependent Claims (55, 56, 57, 58, 59, 60)
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61. A local renal infusion system for treating a renal system in a patient from a location within the abdominal aorta associated with first and second flow paths within an outer region of abdominal aortic blood flow generally along the abdominal aorta wall and into first and second renal arteries, respectively, via their corresponding first and second renal ostia along an abdominal aorta wall in the patient, comprising:
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an elongated member, the elongated member having a proximal end location, a mid distal location, a distal end location, and a longitudinal axis;
the elongated member further having a central lumen, a first outer lumen and at least a second outer lumen;
each of the outer lumens having an outer wall in the elongated member;
a slit of a predetermined length in the outer wall of each outer lumen, the slit made parallel to the longitudinal axis of the elongated member and extending from the distal end location of the elongated member to the mid distal location of the elongated member;
a local injection assembly with a first single tube and at least a second single tube, wherein each single tube is inserted into a corresponding outer lumen;
each single tube having a proximal end and a distal end;
wherein the distal end of each single tube is coupled to the distal end location of the elongated member;
the first single tube having a first injection port positioned between the distal end of the first single tube and the mid distal location of the elongated member;
the second single tube having a second injection port positioned between the distal end of the second single tube and the mid distal location of the elongated member;
the single tubes adjustable between a first configuration and a second configuration;
the single tubes radially collapsed relative to the longitudinal axis of the elongated member in the first configuration;
wherein in the second configuration, the single tubes extend radially from the longitudinal axis of the elongated member through the slit in the outer walls when the proximal ends of the single tubes are advanced distally;
wherein in the second configuration, the first port and second port are at a first position and a second position respectively;
wherein the local injection assembly is adapted to be positioned at the location with the first and second injection ports at first and second positions, respectively, corresponding with the first and second flow paths;
wherein the local injection assembly is adapted to be fluidly coupled to a source of fluid agent externally of the patient when the local injection assembly is positioned at the location; and
wherein the local injection assembly is adapted to inject a volume of fluid agent from the source, through the first and second injection ports at the first and second positions, respectively, and bi-laterally into the first and second renal arteries, also respectively, via the respective corresponding first and second renal ostia without substantially altering abdominal aorta flow along the location. - View Dependent Claims (62, 63)
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Specification